Is there an Echo effect for animating in blender?
There is a function which creates a very close effect to the one you're describing.



In the Properties Panel, go to the object section and under Duplication, select Frames.

Duplicates of the object in its state from the specified Start and End frame are shown on all frames. To create the echo, set a keyframe on both properties.

Then, go to the graph editor and add a Generator modifier to both curves. By choosing a lower offset for the Start Frame property you will have a span of frames which are shown.

Start Frame = -10 + 1 * x
End   Frame =  10 + 1 * x